US President Joe Biden has said a deadly blast at a Gaza hospital appears to have been caused by Palestinian militants, backing Israel’s account of the incident as he visits the country.
Mr Biden, who landed in Tel Aviv on Wednesday, said he was “deeply saddened and outraged” by the explosion.
Israel’s military said it was caused by a failed Palestinian rocket launch.
But Palestinian officials said an Israeli air strike hit the hospital.
Health officials in Gaza have said almost 500 people were killed in the explosion, but no death toll has been confirmed.
Mr Biden’s high-stakes visit has been overshadowed by the blast at the Al-Ahli Arab Hospital on Tuesday evening, which has further inflamed tensions and sparked protests across the region.
He landed in Tel Aviv on Wednesday where he was greeted warmly by Israel’s Prime Minister, Benjamin Netanyahu, before the pair hosted a joint news conference.
“I was deeply saddened and outraged by the explosion at the hospital in Gaza yesterday,” Mr Biden said.
“Based on what I’ve seen, it appears as though it was done by the other team, not you,” he told Mr Netanyahu. “But there’s a lot of people out there not sure so we have to overcome a lot of things.”
The US president reiterated his support for Israel and condemned the Palestinian militant group Hamas, which launched an unprecedented attack on Israel from Gaza on 7 October that left 1,400 people dead.
At least 3,000 people have been killed in retaliatory Israeli strikes on Gaza, according to Palestinian health officials.
Mr Biden had planned to travel from Israel to Jordan to meet King Abdullah, Palestinian Authority President Mahmoud Abbas and Egyptian President Abdul Fattah al-Sisi, but that leg of the trip was cancelled after the hospital blast on Tuesday.
Jordan cancelled the meeting and condemned what it called “a great calamity and a heinous war crime”. The White House, meanwhile, said the decision had been “made in a mutual way” and Mr Biden would call Mr Abbas and Mr Sisi on his return flight to the US.
The US president is expected to meet the Israeli war cabinet later on Wednesday.
He will ask “tough questions” to better understand Israel’s war aims and objectives in Gaza, US National Security Council spokesman John Kirby said.
“He’ll be asking some tough questions but he’ll be asking them as a friend,” Mr Kirby told reporters, adding that the US would stress the need for humanitarian aid to enter Gaza and the obligation to avoid civilian casualties.
Mr Biden will also meet emergency workers who responded to the Hamas attack as well as some of those who lost loved ones or whose family members are being held hostage, officials said.
Israel has asked the US for $10bn (£8.2bn) in emergency military aid following the attack, the BBC’s US partner CBS News reported, quoting what it called sources familiar with the request.
Authorities in Gaza, which is governed by Hamas, say 500 people died in the hospital explosion, which one doctor called “a massacre”.
Hamas blamed Israel, calling it a “war crime”. A spokesperson for Mr Abbas, who is based in the occupied West Bank, accused Israel of a “heinous crime”.
But the Israeli military said it had proof its forces were not behind the blast and that it was instead caused by rockets misfired by Palestinian Islamic Jihad.
“According to our intelligence, Hamas checked the reports, understood it was an Islamic Jihad rocket that had misfired – and decided to launch a global media campaign to hide what really happened,” spokesman Rear Admiral Daniel Hagari told a briefing on Tuesday. “They went as far as inflating the number of casualties.”